As the percentage of successfully tracked older adults is lower in comparison to younger participants, older individuals were oversampled in order to have similar numbers of trackable participants in both age groups. (academic.oup.com)
It's also a way to demonstrate that necessary platform or following with trackable numbers. (goodereader.com)
I AM a spreadsheet junkie, but I've not yet doing the work to get a «Value per subscriber», thanks largely to my tendency not to use trackable links to get definitive earnings counts. (marketingsff.com)